New Crestron DIN Modules and the Cameo Dual Dimmer: What They Mean for Lighting Panels in London Homes

Crestron DIN modules are the dimmers and switches that sit in a central lighting panel, and two new ones are on the way: the DIN-4DIMU4 universal dimmer and the DIN-8SWU8 universal switch, both expected in October 2026 according to Residential Systems. Along with the new Cameo Dual Dimmer they point to smaller lighting panels and fewer plates on the wall, which matters in a London home where every cupboard is already spoken for.

What Crestron has announced

Crestron previewed the two modules at CEDIA Expo 2026, the trade show held in Denver at the start of September. The trade publication Residential Systems, in its report of 10 September 2026, calls them "two next-generation DIN Rail modules engineered for the LED era" and says they "replace multiple legacy devices and reduce panel sizes by half". Crestron then listed both in the release notes for Crestron Home 4.12, dated 22 September 2026, and the descriptions in this table are taken from those notes and from Crestron's blog.

Three things are missing. No prices have been published in anything we have seen. Nothing has been said about availability in this country. And when we looked on 1 October 2026 we could not find a product page or data sheet for either module on Crestron's website, so the width of each module and the load each channel can carry are still to come.

Why smaller Crestron DIN modules matter in a London home

With Crestron lighting control the dimming is normally done centrally. The cable from each lighting circuit runs back to a panel, the DIN modules in that panel do the dimming and switching, and the walls carry slim engraved keypads in place of rows of dimmer knobs. The price is the panel, which has to live somewhere.

Crestron's current universal dimmer, the DIN-1DIMU4, dims four circuits and its product page gives its width as 12 DIN module spaces, or 216 mm of rail. A house with 24 dimmed circuits needs six of them. That is almost 1.3 metres of rail before a single switch module, power supply or circuit breaker has been added.

In a London terrace, a mansion flat or a lateral apartment the panel competes with the boiler, the consumer unit, the network cabinet and the coats. It is often the lighting panel that decides what a cupboard under the stairs or a basement utility room can still be used for. If the new modules do halve the panel, as Residential Systems reports, that is space handed back to the house. It is a reported claim, not our measurement, and until the widths are published we cannot repeat the sum above for the new modules.

What "universal" and "feeds" mean

Crestron's page for the existing DIN-1DIMU4 describes four channels of forward phase (leading edge) or reverse phase (trailing edge) dimming, which is what "universal" refers to there. That matters with LED lighting, because lamps and drivers differ in which method they dim well on. For the DIN-4DIMU4 we only have the one line description so far, so we will not guess at its load ratings.

The description does reveal one change. The current module shares a single feed across its four channels. The new dimmer has four feeds for four channels, and the new switch has eight feeds for eight. A feed is the supply from a circuit breaker, so on paper each channel can sit on its own protected circuit. Crestron also calls the dimmer's channels "bridgeable"; we will explain what that allows once the specification is out.

The switch module handles circuits that are simply on or off, and its description offers the same outputs as four motor control channels. The 100-230VAC rating in Crestron's description covers the 230 volt mains used here.

The Cameo Dual Dimmer: two circuits from one wall position

Not every project can be centralised. In a finished house where nobody wants floors lifted to pull cables back to a panel, dimmers in the wall are the practical route, and Cameo is Crestron's range of in wall keypads and dimmers.

Crestron's blog post on Crestron Home 4.12, published on 22 September 2026, argues that rooms with more than one lighting load are common and that several devices side by side create clutter on the wall. Its answer is the CM2-DIM2EX, which dims two circuits independently from one position. CE Pro, reporting on 25 September 2026, describes the dual dimmer as upcoming.

A caution for retrofits here: "gang box" is the American term for a back box, and Crestron has not yet published the voltage or the box format of the dual dimmer. We would not design a London retrofit around it until Crestron confirms a version for 230 volt wiring and the back boxes used in this country.

What an existing Crestron owner needs

• Crestron Home 4.12 or later. That is the first version whose release notes list the two modules.
• A processor that can run it. Crestron's manual lists the CP4-R (Version 2), MC4-R (Version 2) and DIN-AP4-R for version 4.11 and later. Our post on Crestron Configure Pro explains where older processors stand.
• Space, and an electrician. These modules switch mains voltage. They are wired into the panel by a qualified electrician and then added to the system by your Crestron installer.
• A question, if your system is older. The release notes cover Crestron Home. If your Crestron system was custom programmed, ask us before assuming a new module can be added to it.

Nothing here means a working panel needs to change. The current modules are still on Crestron's list of devices that work with Crestron Home. The reasons to look at the new ones are an extension, a rewire, or a panel that has run out of room. For what a visit costs, see our smart home cost guide.

Should you wait for them?

1. At design stage, with first fix months away. Plan the panel around the modules that exist today, and note which could be swapped for the new ones. If they arrive in time you gain space. If they are late, nothing is held up.
2. Being wired or commissioned this autumn. Use the current modules. October 2026 is an expected date reported by the trade press, not a promise.
3. Already living with Crestron. There is no need to act. Keep the firmware up to date, which also brings features such as Multiview in Crestron Home 4.12.

In a blog post dated 28 September 2026 about its stand at the Monaco Yacht Show, Crestron itself said the two modules have a smaller footprint, and called them the latest milestones in a multi-phase plan to update its whole DIN rail range.

How 1Install can help

We design, install and look after Crestron lighting as part of whole house systems. Our lighting control team in London can work out how many circuits a house needs and how much panel space that takes, and our Crestron installers in London can check what your present processor and firmware will support. Our process sets out the stages from design to handover, and 1Install Care keeps the system supported afterwards.

Questions we are often asked

When can I get the new Crestron DIN modules in London?

Residential Systems reports that both are expected in October 2026. Crestron has not announced availability or prices for this country, so ask us and we will check with Crestron before anything is specified.

Will they work with my existing Crestron Home system?

They are supported from Crestron Home 4.12. Your system needs a processor that runs that version, which Crestron lists as the CP4-R (Version 2), MC4-R (Version 2) or DIN-AP4-R.

Do I have to replace the dimmer modules I already have?

No. Existing modules carry on working and remain on Crestron's supported list. New modules are worth considering when circuits are being added or a panel is being rebuilt.

Will a universal dimmer work with any LED fitting?

No. On Crestron's current universal dimmer a channel can dim leading edge or trailing edge. LED fittings and drivers still vary, so we recommend testing the actual fittings chosen for a project before ordering.

Can I order the Cameo Dual Dimmer yet?

Not yet. Crestron says Crestron Home 4.12 will support it once it ships, and has given no shipping date and no details of a version for this country.

Book a consultation or call our head office on 01344 937999 (London office 0208 064 0196).